Here, you can edit the sections such as the name, description, and url. I’ve used this blog as an example. Once you’re done, save the file and call it “manifest.json” and store it in the folder you created earlier. Next, create any 128X128 px image, naming it 128.png and save that in your folder.

Lastly, head over to your Extensions page at chrome://extensions. Click the Developer Mode link on the top right corner to reveal three buttons. Select “Load unpacked extension…” and navigate to your folder where you’ve stored your web app then hit ok.

Open up a new tab, and BAM! You’ve just created your first Google Chrome web app! Congratulations.